Quanterix Corp — Director's Dealing 2019

Apr 4, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Quanterix Corp (QTRX)
CIK: 0001503274
Period of Report: 2019-04-01

Reporting Person: CRANDELL KEITH (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-04-01	Common Stock	A	502.00	$23.40	Acquired	5042.00	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2412001.00	Indirect
Common Stock	1537684.00	Indirect

Footnotes

F1: Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the first quarter of 2019, pursuant to an election made in December 2018.

F2: Closing price of the Company's common stock on the Nasdaq Global Market on April 1, 2019.

F3: Includes 2,270 restricted stock units.

F4: The shares are held of record by ARCH Venture Fund VI, L.P. ("ARCH Fund VI"). The sole general partner of ARCH Fund VI is ARCH Venture Partners VI, L.P. ("ARCH Partners VI"), which may be deemed to beneficially own the shares held by ARCH Fund VI. The sole general partner of ARCH Partners VI is ARCH Venture Partners VI, LLC ("ARCH VI LLC"), which may be deemed to beneficially own the shares held by ARCH Fund VI. ARCH Partners VI and ARCH VI LLC disclaim beneficial ownership of such shares, except to the extent of any pecuniary interest therein. As a managing director of ARCH VI LLC, the Reporting Person may be deemed to beneficially own the shares held by ARCH Fund VI. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein.

F5: The shares are held of record by ARCH Venture Fund VIII Overage, L.P. ("ARCH Fund Overage"). The sole general partner of ARCH Fund Overage is ARCH Venture Partners VIII, LLC ("ARCH VIII LLC"), which may be deemed to beneficially own the shares held by ARCH Fund Overage. ARCH VIII LLC disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein. As a managing director of ARCH VIII LLC, the Reporting Person may be deemed to beneficially own the shares held by ARCH Fund Overage. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein.